Overview
- The expanded probe targets 2015–2017 F-150 pickups equipped with Ford’s 6R80 six-speed automatic transmission.
- Owners report abrupt, uncommanded downshifts that cause sudden deceleration and brief rear-wheel lockup with skidding.
- Preliminary testing found intermittent TRS signal loss can shift a truck into neutral when reversing uphill, allowing it to roll forward.
- Ford told regulators the suspected failure mode differs from earlier 2011–2014 recalls and may stem from worn electrical connections causing signal loss from a different sensor.
- Investigators note many trucks have undergone parts replacements such as molded lead frames or valve bodies, and no recall has been announced as testing continues.